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Robert J. Lefkowitz

Researcher at Howard Hughes Medical Institute

Publications -  867
Citations -  153371

Robert J. Lefkowitz is an academic researcher from Howard Hughes Medical Institute. The author has contributed to research in topics: Receptor & G protein-coupled receptor. The author has an hindex of 214, co-authored 860 publications receiving 147995 citations. Previous affiliations of Robert J. Lefkowitz include University of Nice Sophia Antipolis & University of Stuttgart.

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Receptor regulation: beta-arrestin moves up a notch.

TL;DR: β-arrestin, a protein known to regulate the signalling, trafficking and degradation of mammalian seven-transmembrane-spanning receptors, has now been identified as a regulator of ubiquitination and degrading of the Notch receptor in Drosophila melanogaster.
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Synthetic nanobodies as angiotensin receptor blockers.

TL;DR: A selection methodology to enrich for functionally modulatory antibodies using a yeast-displayed library of synthetic camelid antibody fragments called “nanobodies” is described, and multiple nanobodies are discovered that act as antagonists of the angiotensin II type 1 receptor (AT1R).
Journal Article

Identification of the ligand-binding subunit of the human 5-hydroxytryptamine1A receptor with N-(p-azido-m-[125I] iodophenethyl)spiperone, a high affinity radioiodinated photoaffinity probe.

TL;DR: The availability of the high specific activity, high affinity, photoaffinity ligand [125I]N3-NAPS and of a potent immunoprecipitating antiserum (JWR21) should greatly facilitate the biochemical characterization of the human 5-HT1A receptor.
Journal Article

Homologous desensitization of the beta-adrenergic receptor. Functional integrity of the desensitized receptor from mammalian lung.

TL;DR: Heterologous desensitization may involve a local sequestration of a functionally intact beta-adrenergic receptor away from the effector adenylate cyclase effector system as assessed by the formation of RH in agonist competition curves.